Marvel counts among its characters such well-known properties as Spider-Man, Wolverine, Iron Man, the Hulk, Thor, Captain America, the Silver Surfer, Daredevil, and Ghost Rider, such teams as the Avengers, the Fantastic Four, the Guardians of the Galaxy, and X-Men, and antagonists such as the Green Goblin, Doctor Octupus, Kingping, Magneto, Doctor Doom, Loki, Thanos, and the Res Skull.